玻璃熔窑的全氧燃烧、纯氧助燃和富氧燃烧技术

本文介绍了玻璃熔窑全氧燃烧技术、纯氧助燃技术和富氧燃烧技术的一些最新研究成果和技术优势，指出全氧、纯氧或富氧燃烧技术是玻璃企业节能降耗、提高产品质量、取得良好经济效益的有效措施，是企业进行节能改造的重要选择。     

玻璃生产中的全氧燃烧

全氧燃烧（又称为纯氧燃烧）技术在玻璃窑中最早主要被应用于窑龄较长的玻璃窑上助熔以维持产量或延长窑的寿命，解决蓄热室或换热室的故障或临时满足高出料率的要求，但到了上世纪80年代末随着制氧技术的发展及电力成本的降低，由氧气、燃料组成的纯氧燃烧技术在玻璃熔窑中成为取代由空气、燃料组成的常规燃烧系统的更好的选择方案，这是因为纯氧燃烧在环保、节能、产量和质量、     

在玻璃熔窑上应用富氧或全氧燃烧技术——达到节能和减少环境污染的目的

近年来,在欧美发达国家,随着对工业烟气排放的限制日益严格,同时氧气制取设备不断完善,富氧和全氧燃烧技术在玻璃工业得到日益广泛的应用,特别是全氧燃烧技术发展迅速,显示出很大的优越性:可以明显地提高玻璃熔窑的熔化率,大量减少NO_x、粉尘及其它有害元素的排放量。本文综合介绍了富氧和全氧燃烧技术在玻璃熔窑上的应用实例,并分析了我国玻璃工业应用此项技术有待进一步研究的问题。     

全氧燃烧技术在水泥窑应用的可行性

<正>1全氧燃烧技术的概念所谓全氧燃烧,就是把燃料与85%～100%纯氧按预定燃料比混合,以更精确的方式来进行燃烧的技术。在欧美,全氧燃烧技术在玻璃窑上的应用已成为一种趋势,这是因为纯氧燃烧不仅能大大降低NOx、CO_2、粉尘等污染物的排放,而且在节能、提高产量和质量、减     

全氧燃烧与空气助燃玻璃窑炉燃烧空间比较

玻璃窑炉全氧燃烧是玻璃工业发展方向,全氧燃烧玻璃窑炉节能关键在于玻璃熔窑的燃烧空间设计,本文对全氧燃烧与空气助燃玻璃窑炉的燃烧空间进行对比,得出全氧玻璃熔窑燃烧空间与传统空气助燃相比可大幅度缩小。     

全氧燃烧玻璃熔窑温度自动设定

富氧助燃、尤其是全氧燃烧熔窑将是今后10年发展的必然趋势.尽快研究开发具有自主知识产权的浮法玻璃熔窑的全氧燃烧技术,进而尽早推广应用乃当务之急.全氧燃烧先进控制系统的研发是其重要一环.本文仅侧重于对全氧燃烧玻璃熔窑温度自控中的温度自动设定问题加以探讨,也可供普通玻璃熔窑借鉴.     

玻璃熔窑全氧燃烧技术的应用与发展

通过对国内外玻璃熔窑全氧燃烧与纯氧助熔技术状况的简介，为我国(浮法、轻工、日用、医药)玻璃工业窑炉在节约能源、提高玻璃质量、减少环境污染及技术进步等方面的研究、开发和应用提供一些借鉴。     

液晶玻璃窑炉全氧燃烧技术探讨

全氧燃烧技术的应用是玻璃工业史上的一次重要突破,液晶玻璃窑炉一般采用电加热和全氧燃烧相结合的混合加热方式,对配合料进行加热,使之熔化成满足要求的高温玻璃液。主要探讨液晶玻璃窑炉全氧燃烧技术的优点、使用前测试、燃气分配比例和使用注意事项等。     

玻璃熔窑全氧燃烧技术概况和技术发展趋势

通过分析玻璃熔窑全氧燃烧技术的优势、技术概况、发展趋势和市场需求,指出全氧燃烧技术为玻璃熔窑实现绿色环保、节能降耗和生产优质玻璃开辟了新的途径,发展全氧燃烧技术是玻璃工业发展的迫切需要.     

浮法玻璃全氧燃烧技术

玻璃熔窑的全氧燃烧技术被称为是玻璃工业熔制技术的"第二次革命"。介绍了对全氧燃烧技术的发展现状、优点及其在浮法玻璃工业应用中遇到的问题;结合全氧燃烧技术在600 t/d浮法玻璃生产线成功应用的经验,对全氧玻璃熔窑的设计、全氧燃烧对玻璃性能的影响,以及实际生产过程中玻璃液表面泡沫多、澄清困难等关键工艺技术难题进行了系统研究分析;并对该技术在浮法玻璃中的节能减排、运行成本等进行了分析及前景展望。     

Tetrazole combustion

Minsk. Translated from Fizika Goreniya i Vzryva, Vol. 24, No. 5. pp. 48–51, September–October, 1988.     

Specific features of combustion in gasoline-driven internal combustion engines

Physical and chemical processes of gasoline combustion in internal combustion engines are considered. A model of combustion evolution in gasoline-driven engines, which explains some specific features of the processes in internal combustion engines, is proposed.     

Large-eddy simulation of turbulent combustion using different combustion models

The second-order moment (SOM) combustion model proposed by the present authors is compared with eddy-break-up (EBU) and presumed probability density function (PDF) combustion models in large-eddy simulation of jet diffusion combustion, swirling diffusion combustion and premixed combustion behind a bluff body. The statistical results for time-averaged and RMS fluctuation temperatures are validated by experimental results. It is seen that the SOM model can always give good statistical results in LES of both non-premixed and premixed combustion, whereas the EBU and presumed PDF models cannot always do. The instantaneous results indicate that organized large vortex and thin flame surface structures are observed in jet diffusion combustion and bluff-body stabilized premixed combustion, whereas no organized vortex and thin flame surface structures are observed in swirling diffusion combustion.     

煤粉燃烧室改烧混合煤的技术措施

我厂窑外分解窑和立波尔窑采用烟煤与无烟煤比例为３０％∶７０％的混合煤，这种煤的挥发分为８％～１２％、灰分为２０％～２４％、细度为２％～５％、水分＜３．５％、着火温度约６００℃。３台Φ３．５m×１０m中卸烘干生料磨配套的３个煤粉燃烧室仍然只能烧烟煤，每天２号煤磨（Φ２．２m×４．４m）要为此专门开机４h左右。如果燃烧室也烧混合煤，既可以节省每吨烟煤与无烟煤近９０元的差价，也可以停开２号煤磨。燃烧室所用煤计划与立波尔窑所用混合煤一样，由１号风扫煤磨（Φ２．８m×８m）磨制。本着尽可能节省投资的原则，我们采…     

On vortex combustion

Known and previously unknown experimental observations of transfer, exchange, and combustion in vortex flames in high-velocity flows are analyzed. The evolution of our concepts of these processes with discoveries of new facts is traced. It is demonstrated that four regimes of homogeneous combustion of the vortex ball in a high-velocity flow are possible: deterministic (coherent), resonant (vibrational), stochastic, and pseudodetonation regimes. Pseudo-detonation combustion is understood as simultaneous homogeneous microturbulent frontal combustion of all layers of the vortex ball with the radius expansion rate several times greater than the entraining flow velocity. The intensity of injection of a homogeneous mixture or air into the burning vortex layer is found to be identical to the notion of intensity of homogeneous or diffusion combustion. It is demonstrated that the classical notions and the Shchelkin-Shchetinkov relations for burning surfaces and volumes are applicable, but only for certain phases and local zones of the burning vortex ball.     

Critical combustion diameter

The heat loss in combustion of gaseous and condensed materials is determined in plane and axisymmetric formulations. Generalized expressions are derived for the combustion quenching conditions versus pressure and the stability boundaries for steady-state combustion of condensed materials are obtained. It is shown that theoretical dependences of the critical diameter on pressure agree with experimental data on combustion of gas mixtures and condensed liquids and solids. __________ Translated from Fizika Goreniya i Vzryva, Vol. 43, No. 1, pp. 29–39, January–February, 2007.